Package org.apache.tools.ant.util

Class ReflectWrapper

java.lang.Object

org.apache.tools.ant.util.ReflectWrapper

public class ReflectWrapper
extends Object

Utility class to handle reflection on java objects. The class is a holder class for an object and uses java reflection to call methods on the objects. If things go wrong, BuildExceptions are thrown.

Constructor Summary

Constructors

Constructor	Description
ReflectWrapper(ClassLoader loader, String name)	Construct a wrapped object using the no arg constructor.
ReflectWrapper(Object obj)	Constructor using a passed in object.

Method Summary

Modifier and Type	Method	Description
<T> T	getObject()
<T> T	invoke(String methodName)	Call a method on the object with no parameters.
<T> T	invoke(String methodName, Class<?> argType, Object arg)	Call a method on the object with one argument.
<T> T	invoke(String methodName, Class<?> argType1, Object arg1, Class<?> argType2, Object arg2)	Call a method on the object with one argument.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ReflectWrapper

public ReflectWrapper(ClassLoader loader,
 String name)

Construct a wrapped object using the no arg constructor.

Parameters:

loader - the classloader to use to construct the class.

name - the classname of the object to construct.

ReflectWrapper

public ReflectWrapper(Object obj)

Constructor using a passed in object.

Parameters:

obj - the object to wrap.

Method Details

getObject

public <T> T getObject()

Type Parameters:

T - desired type

Returns:

the wrapped object.

invoke

public <T> T invoke(String methodName)

Call a method on the object with no parameters.

Type Parameters:

T - desired type

Parameters:

methodName - the name of the method to call

Returns:

the object returned by the method

invoke

public <T> T invoke(String methodName,
 Class<?> argType,
 Object arg)

Call a method on the object with one argument.

Type Parameters:

T - desired type

Parameters:

methodName - the name of the method to call

argType - the type of argument.

arg - the value of the argument.

Returns:

the object returned by the method

invoke

public <T> T invoke(String methodName,
 Class<?> argType1,
 Object arg1,
 Class<?> argType2,
 Object arg2)

Call a method on the object with one argument.

Type Parameters:

T - desired type

Parameters:

methodName - the name of the method to call

argType1 - the type of the first argument.

arg1 - the value of the first argument.

argType2 - the type of the second argument.

arg2 - the value of the second argument.

Returns:

the object returned by the method